Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Patent
1998-06-30
2000-11-28
Beausoliel, Jr., Robert W.
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
709220, G06F 1300
Patent
active
061548499
ABSTRACT:
A method and apparatus that allows flexibility in failure diagnosis, so that a single failure event received by a failure analysis system can affect the availability of different resources in different ways. The described embodiment also allows the dependency between resources to be "relaxed" in certain circumstances. Each failure event in the failure diagnosis system is processed in accordance with dependency logic that describes the strength of the dependencies between various system resources and further determines the precedence if there are multiple dependencies between resources. The dependency logic further determines whether a resource depended on by the current resource is internal or external, e.g., if the resource depended on is inside or outside firewall. The dependency logic also includes a precondition, describing the circumstances in which a dependency between two resources will be found to exist. In addition, the dependency logic includes relaxation rules, which define how a dependency on a particular resource is to be relaxed for a particular current resource.
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Beausoliel, Jr. Robert W.
Iqbal Nadeem
Sun Microsystems Inc.
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